Three-month-old babies with food retention may have abdominal pain, belching (hiccups), constipation or sour stools. Accumulation of food in three-month-old babies is mainly due to spleen and stomach disharmony, coupled with improper feeding, etc. When a large amount of food is accumulated in the gastrointestinal tract for a long period of time, children may experience abdominal distension, abdominal pain, belching (hiccups), constipation and sour-smelling stools. When the child has the above symptoms, he/she can be treated with medicines to help digestion under doctor’s guidance, such as Compound Chicken Neijin Powder and Baohe Granules, etc., which can improve the symptoms of food accumulation. Babies should avoid drinking cold milk powder in diet and avoid giving babies too much milk at one time. When three-month-old babies have symptoms of food accumulation, it is recommended to go to the pediatric department of the hospital in time. The above medicines should be used according to the doctor’s prescription, not blindly self-medication.